Results 71 to 80 of about 209,812 (231)

Analysis of Bit Rate and Distance Variation on Multiplexing System of Indoor Li-Fi Technology Using Movable LED Panel

Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2023
The major problem of using light fidelity (Li-Fi) technology is still limited to the line of sight (LOS) conditions, which poses a challenge to perform bandwidth efficiency to support increased bit rates, especially for indoor use.
Fauza Khair, I Wayan Mustika, Anggun Fitrian Isnawati3, Nur Azizah   +3 more
doaj   +1 more source

Hyperglycaemia‐induced reactive oxygen species production in cardiac ventricular myocytes differs among mammals

The Journal of Physiology, EarlyView.
Abstract figure legend In rat and human adult ventricular myocytes, acute hyperglyceaemia (Glucose) causes increased glucose uptake (via GLUT) leading to O‐GlcNAcylation of CaMKII at Ser280, such that CaMKII activates NADPH oxidase 2 (NOX2) to increase cytosolic reactive oxygen species (ROS). That perturbs the ROS to Antioxidant (AntiOx) balance.
Shan Lu, Maria J. Baier, Risto‐Pekka Polonen, Zhandi Liao, Jody L. Martin, Kenneth S. Ginsburg, Julian Mustroph, Donald M. Bers   +7 more
wiley   +1 more source

When NCX switches sides: Experimental and computational insights into Ca2+ regulation in the heart

The Journal of Physiology, EarlyView.
Abstract figure legend Due to its presence inside the dyadic cleft, Na+/Ca2+ exchanger (NCX) builds a functional unit together with L‐type calcium channels and ryanodine receptors in the dyadic cleft. NCX acts bidirectionally (forward and reverse mode) dependent on extracellular calcium ([Ca2+]o) and sodium ([Na+]o) concentrations and the membrane ...
Wilhelm Neubert, Judith Hüttemeister, Paulina Sander, Nagaiah Chamakuri, Felix Hohendanner, Martin Falcke, Frank R. Heinzel   +6 more
wiley   +1 more source

Low error floor LT coding algorithm by using fixed-length node classification window

Tongxin xuebao, 2021
To solve the problem of high error floor for LT codes in additive white Gaussian noise (AWGN) channels, an improved coding scheme was designed.A fixed-length classification window was used to sort out the information nodes with relatively small degrees ...
Xin SONG, Naiping CHENG, Shuyan NI, Yurong LIAO, Tuofeng LEI   +4 more
doaj   +2 more sources

Constitutive and inducible oleoresin defenses share genetic architectures and mechanisms in Pinus taeda

New Phytologist, Volume 250, Issue 5, Page 2966-2987, June 2026.
Summary The oleoresin defense system of loblolly pine (Pinus taeda) protects trees from insects and pathogens and is an important source of renewable biofuels and chemicals, but the genetic basis of oleoresin production is poorly understood. We characterized the genetic architecture of oleoresin flow, resin canal number, stem wood terpene content, and ...
Mallory M. Morgan, Jared Westbrook, Christopher Dervinis, Tania Quesada, Salvador Gezan, Robert Sykes, Timothy S. Johnson, Gabriela Madrid, Matthew Lane, Alice Townsend, Thomas A. Colquhoun, John M. Davis, Daniel Jacobson, Gary F. Peter   +13 more
wiley   +1 more source

Performance of probabilistic amplitude shaping with BICM‐ID

Electronics Letters, 2021
It is numerically shown that bit error rate (BER) performance of probabilistic amplitude shaping (PAS) applying a bit‐to‐symbol mapping of non‐Gray natural binary code assigned to 64‐quadrature amplitude modulation is significantly improved by bit ...
Akira Naka
doaj   +1 more source

In situ method for power re-equalization of wavelength pulses inside of OCDMA codes [PDF]

, 2011
A simple in-situ method to equalize power among individual wavelengths pulses representing two-dimensional wavelength-hopping time-spreading OCDMA code originally generated by a fibre Bragg grating-based OCDMA encoder is presented.
Glesk, Ivan, Gupta, Gyaneshwar, Idris, Siti Khadijah, Osadola, Tolulope Babajide, Sasaki, Kensuke   +4 more
core   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

International Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

Degradation Improvement in BER Due to Various Sources of Noise in Optical Transceivers

Journal of Engineering and Sustainable Development, 2005
The quality of digital communications whether at radio or optical frequencies depends primarily on the Bit Error Rate (BER). Reducing the BER improves the communication system behavior.
T. A. AL-Jumailly , Salah A. AL-Abady
doaj  

Extreme Outages due to Polarization Mode Dispersion

, 2003
We investigate the dependence of the bit-error-rate (BER) caused by amplifier noise in a linear optical fiber telecommunication system on the fiber birefringence.
Andresciani, Bergano, Biondini, Bülow, Eyal, Igor Kolokolov, Kaminow, Kogelnik, Machida, Michael Chertkov, Poole, Poole, Poole, Poole, Rashleigh, Ulrich, Vladimir Chernyak, Vladimir Lebedev, Xie   +18 more
core   +1 more source